Yiisoft\Data\Reader\Iterable\Processor\EqualsNull

Complexity

Total Complexity

4

Size/Duplication

Total Lines	18
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes	1
Bugs	0	Features	0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	getOperator()	0	3	1
A	match()	0	11	3

<?php

declare(strict_types=1);

namespace Yiisoft\Data\Reader\Iterable\Processor;

use InvalidArgumentException;
use Yiisoft\Data\Reader\Filter\FilterProcessorInterface;
use Yiisoft\Data\Reader\FilterDataValidationHelper;

use function array_key_exists;
use function count;

class EqualsNull implements IterableProcessorInterface, FilterProcessorInterface
{
    public function getOperator(): string
    {
        return \Yiisoft\Data\Reader\Filter\EqualsNull::getOperator();
    }

    public function match(array $item, array $arguments, array $filterProcessors): bool
    {
        if (count($arguments) !== 1) {
            throw new InvalidArgumentException('$arguments should contain exactly one element.');
        }

        [$field] = $arguments;
        FilterDataValidationHelper::assertFieldIsString($field);

        /** @var string $field */
        return array_key_exists($field, $item) && $item[$field] === null;
    }
}